田间的

Then, when you have gone ten or twenty miles through cornfields without having seen a living thing, no cow, no dog, scarcely even a bird under the hot sky, suddenly you come upon a noisy contraption at the roadside, a system of contraptions, rather, for husking the corn and stripping the grain.

当你穿行在玉米田间，行驶了十里，二十里，却看不到一个活物，看不到牛看不到狗，连晴热天空下的飞鸟也难见到，这时，突如其来地，你会见到路旁有个发出噪声的新奇的机械装置，或者说是一组机械装置，那是用来剥玉米壳碾谷的。

The study on infield weed detection using machine vision is significant to reduce herbicide dosage and environmental pollution by ...

利用机器视觉技术进行田间杂草识别方法的研究，对实现除草剂的变量喷洒，以减少除草剂的使用量、降低生态环境的污染具有重要意义。

In a reservoir irrigation system, adjustment of water distribution in time is realized by reservoir operation, and operation of irrigation canal systems adjusts water distribution in space.

对于水库灌区，调节水量在时间上的分配是通过对水库的调度实现的，田间配水则是水量的空间分配过程。

According to the experiment results of degradation in field, degradation mechanism of the biodegradable mulch film can include four stages: the first, the material surface appeared deficiency while the surface area and interstice increased of material in the action of natural environment and microorganism; the second, along with the surface area and interstice of material increased and the gap strengthened, the chemical chain of the high polymer's principal chain broke as a result of the hydrolysis or the enzymatic effect in the action of hydration, causing the molecular weight and mechanics function descended; the third, the molecular of high polymer split the low polymer after its physical mechanical function descended, the material decomposed the fragments, the mass defect intensified; the fourth, the low polymer of fragments form in the natural environment, the microorganism, the biological enzyme became the smaller fragments, thus absorbed by the phagocytes, or further turn into CO2 and H2O due to hydrolysis.

根据田间降解试验结果推测，生物全降解地膜的降解机理可能包括四个阶段：第一，在自然环境、微生物作用下，材料表面出现缺陷，同时表面积增大、空隙增多；第二，随着材料表面积的增大、空隙的增多，吸水性增强，在自水合作用下，高聚物主链由于水解或酶解而使化学链断裂，导致分子量和力学性能下降；第三，在其物理机械性能下降后，高聚物分子链断裂为低聚物分子，材料裂解为碎片状，质量损失加剧；第四，碎片状低聚物在自然环境、微生物、生物酶作用下进一步水解变成尺寸更小的碎片，从而被吞噬细胞吸收，或进一步水解，生成CO2和H2O。

A field trial was conducted in a greenhouse with soil affected by secondary salinization to explore effects of application of oil cake manure on soil available nutrients, water soluble salts and salt composition, and hence to evaluate feasibility of applying oil cake manure to ameliorate soils affected by secondary salinization, and predict possible consequences of the application of a large amount of oil cake manure in the greenhouse soil.

通过田间试验研究了施用油菜菜籽饼肥处理后，次生盐渍化温室土壤中的有效养分、水溶性盐分含量及盐分离子组成的变化，以评价施用饼肥改良次生盐渍化温室土壤的可行性以及在温室土壤上大量施用油菜籽饼肥可能出现的后果。

The results showed that the 50% leaf removal could increase the yield of sound boll by 24.4% that suggested the happening of overcompensation. The 25% leaf removal had no influence on cotton plant height and protein content in leaves, suggesting the 25% leaf removal in standard falling into the category of growth redundancy, but the climax in protein content in cotton leaves postponed about one week.

在棉花盛蕾期，用剪刀剪除棉花标准叶面积的25%和50%，模拟田间害虫的食叶危害程度，结果显示：50%去叶处理可使棉花成铃数增加24.4%，产生超补偿现象。25%去叶处理在短时间内对棉花的株高和叶中蛋白质含量都没有影响，植株株型亦无大的变化，表明25%叶面积属于生长冗余范畴。

To resolve the problem that the concentration of CO2 was hard to control in fields,KHCO3 was sprayed on soybean leaves and NaHSO3 was used to restrain photorespiration at the same time,so as to find the best application amount of KHCO3 and NaHSO3 to increase photosynthetic rate of soybean seedlings.

针对目前还难以控制田间CO2浓度的问题，采用在大豆幼苗叶片上喷施碳酸氢钾(KHCO3)的方法，同时用亚硫酸氢钠( NaHSO3)适当的抑制大豆的光呼吸，来提高CO2浓度进而提高光合速率。

Examples have been calculated by use of parameter optimization inverse program.

根据田间实测数据采用开发的参数优化反求程序进行了实例计算，分析比较了采用不同目标函数的结果，结果表明，采用第三种目标函数进行计算，优化结果最理想；并用这些结果与设置相同目标函数的离散变量算法和试算法的结果进行了对比，结果显示，三种算法所得结果没有明显差异。

ConclusionIn the warm, humid and acidic circumstance where is benefitial to hyphal growth and reproduction of Sclerotium roffsii Sacc.. Validamycin can be used as an effective fungicide.

结论］温暖潮湿、偏酸性的环境适合白绢病菌的生长和繁殖，井冈霉素可作为防治白绢病的有效药剂用于田间该病害的控制。

Three horizontal resistance QTLs, termed PRQ1, PRQ2 and PRQ3, located on linkage groups C, P and N, respectively, were identified for area under the disease progress curveand for percentage of pustule area versus total leaf area in field and together explained 27%of the phenotypic variance.

用病斑面积占总叶面积的百分率和病害发展曲线下的面积作为抗病指标，在田间试验中分别探测到3个燕麦冠锈病水平抗性的QTL，依次命名为PRQ1，PRQ2和PRQ3。这3个QTL分别位于连锁群C，P和N上，总共可解释27%的表现型变量。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐